Question

In: Physics

1. You watch your toddler nephew rolling marbles toward the top of a staircase. There are...

1. You watch your toddler nephew rolling marbles toward the top of a staircase. There are 18 steps, each 30.0 cm deep horizontally, and separated by 20.0 cm vertically. The marbles leave the upper landing horizontally and are projected into the air, bouncing down the steps until they arrive at the lower floor.

(a)Suppose the marble is projected with a speed such that it lands on the ninth step and bounces upward at the same angle at which it struck the step, at the same speed. Argue that the marble will not hit another step before striking the floor of the lower landing.

2. If you know the position vectors of a particle at two points along its path and also know the time it took to get from one point to the other, can you determine the particle's instantaneous velocity and average velocity? Explain.

Solutions

Expert Solution

Solution in the uploaded images

genius_generous answered 1 year ago
Next > < Previous

Related Solutions

You are babysitting your niece (age 10) and nephew (age 3). You nephew is very upset...
You are babysitting your niece (age 10) and nephew (age 3). You nephew is very upset that you won’t let him eat candy for dinner and throws a temper tantrum, becoming so angry that decides he’s going to hold his breath until you give in to his demands. Your niece is very concerned and wonders why you are so relaxed and confident that he cannot harm himself by holding his breath. For this week’s science communication assignment explain to your...
An alien is zipping toward the Earth in its shiny new space vehicle. As you watch...
An alien is zipping toward the Earth in its shiny new space vehicle. As you watch it approach from the surface of the Earth, you measure the speed of the space vehicle to be 0.75c. Since this alien is of the friendly type and wants you to know it has come in peace, the alien sends a message to you using radio wave frequencies in the electromagnetic spectrum. 13) If both you and the alien were to measure the speed...
You have a bag of marbles. Your bag contains 75 marbles. You only want the red...
You have a bag of marbles. Your bag contains 75 marbles. You only want the red marbles. You know that 30 of the marbles in the bag are red. You randomly select two marbles from the bag and set them aside without looking at them. Let X represent the number of red marbles removed. (hint. This is without replacement.) a) find the probability mass function (i.e. probability distribution) for the number of red marbles selected. b) find the expected number...
1. Ball rolling down an incline :Later you will be measuring the acceleration of the rolling...
1. Ball rolling down an incline :Later you will be measuring the acceleration of the rolling ball down the incline for several different incline angles, and we want to compare with the theoretical expected value. The best way to show this is to plot the acceleration on the vertical axis, and the value of sin(θ) on the horizontal axis, as shown on the plot below. Draw in the expected theoretical variation of the acceleration on this plot. 2. A 0.200...
Synapse function prompt: You are talking with your 10 year old nephew who is very excited...
Synapse function prompt: You are talking with your 10 year old nephew who is very excited to tell you that he learned in science class that the nervous system is like a series of electrical wires that run throughout the body. With your newfound experience in physiology you know that’s not quite true, and that there are gaps (synapses) between neurons, meaning information in the nervous system is not just transmitted via action potential. Describe to your nephew how information...
1) You were the top student in your physiology class last semester. For this reason, your...
1) You were the top student in your physiology class last semester. For this reason, your professor has asked that you prepare some lectures for her physiology class this semester. Specifically, she would like you to discuss the similarities and differences between the cardiovascular and respiratory systems, in terms of pressure gradients and fluid flow. Explain how will you describe the role of the following structures: the pump and the tubes. 2) Julia is breathing 14 times per minute, with...
1) You were the top student in your physiology class last semester. For this reason, your...
1) You were the top student in your physiology class last semester. For this reason, your professor has asked that you prepare some lectures for her physiology class this semester. Specifically, she would like you to discuss the similarities and differences between the cardiovascular and respiratory systems, in terms of pressure gradients and fluid flow. Explain how will you describe the role of the following structures: the pump and the tubes. 2) List, compare, and contrast the locations and stimuli...
Write a journal entry to address: 1. The attitude you have toward exercise 2. Your family...
Write a journal entry to address: 1. The attitude you have toward exercise 2. Your family background, experiences, and education contributed to that attitude
You are celebrating your 22nd birthday today. You have decided to start investing toward your retirement...
You are celebrating your 22nd birthday today. You have decided to start investing toward your retirement beginning one month from today. For the first twenty years, you will invest $500 every month. During the next ten years, you will increase your contributions to $900 per month. For the remainder of your working life until you retire at age 67, you plan to invest $1,500 every month. If your investments earn a rate of return of 8.4 percent throughout your working...
You are celebrating your 22nd birthday today. You have decided to start investing toward your retirement...
You are celebrating your 22nd birthday today. You have decided to start investing toward your retirement beginning one month from today. For the first twenty years, you will invest $500 every month. During the next ten years, you will increase your contributions to $900 per month. For the remainder of your working life until you retire at age 67, you plan to invest $1,500 every month. If your investments earn a rate of return of 8.4 percent throughout your working...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT